<template>
  <div class="title">
    <span :class="{active:state.login_type==0}" @click="state.login_type=0">密码登录</span>
    <span :class="{active:state.login_type==1}" @click="state.login_type=1">短信登录</span>
  </div>
  <div class="inp" v-if="state.login_type==0">
    <input v-model="state.username" type="text" placeholder="用户名 / 手机号码" class="user">
    <input v-model="state.password" type="password" class="pwd" placeholder="密码">
    <div id="geetest1"></div>
    <div class="rember">
      <label>
        <input type="checkbox" class="no" v-model="state.remember"/>
        <span>记住密码</span>
      </label>
      <p>忘记密码</p>
    </div>
    <button class="login_btn" @click="show_captcha">登录</button>
    <p class="go_login" >没有账号 <router-link to="/register">立即注册</router-link></p>
  </div>
  <div class="inp" v-show="state.login_type==1">
    <input v-model="state.mobile" type="text" placeholder="手机号码" class="user">
    <input v-model="state.code"  type="text" class="code" placeholder="短信验证码">
    <el-button id="get_code" type="primary">获取验证码</el-button>
    <button class="login_btn">登录</button>
    <p class="go_login" >没有账号 <router-link to="/register">立即注册</router-link></p>
  </div>
</template>

<script setup>
import {reactive, defineEmits} from "vue"
import { ElMessage } from 'element-plus'
import {user_login} from "../api/user"
import {useStore} from "vuex"
import "../utils/TCaptcha"
import settings from "../settings";

const emit = defineEmits(["success",])
const store = useStore()

const state = reactive({
  login_type: 0,   // 登录类型
  remember: false, // 是否记住密码[也就是记住登录状态]
  username:"",    // 用户名
  password:"",    // 密码
  mobile: "",     // 手机号
  code: "",       // 验证码
})

// 显示登录验证码
const show_captcha = ()=>{
  // 直接生成一个验证码对象。
  let  captcha1 = new TencentCaptcha(settings.captcha_app_id, (res)=>{
    // 验证码通过验证以后的回调方法
    if(res && res.ret === 0){
      // 验证通过，发送登录请求
      loginhandler(res)
    }
  });

  // 显示验证码
  captcha1.show();
}

const loginhandler = (res)=>{
  // 登录处理
  if(state.username.length<1 || state.password.length<1){
    // 错误提示
    ElMessage.error('错了哦，用户名或密码不能为空！');
    return false
  }

  // 发送请求
  user_login({
    username: state.username,
    password: state.password,
    // 验证码通过的票据信息
    ticket: res.ticket,
    randstr: res.randstr,
  }).then(response=>{
    console.log(response.data.token)
    // 保存token，并根据用户的选择，是否记住密码
    localStorage.removeItem("token")
    sessionStorage.removeItem("token")

    if(state.remember){
      // 记住登录
      localStorage.token = response.data.token
    }else{
      // 不记住登录
      sessionStorage.token = response.data.token
    }
    // vuex存储用户登录信息
    let payload = response.data.token.split(".")[1]  // 载荷
    let user = JSON.parse(atob(payload)) // 用户信息
    store.commit("login", user)

    // 成功提示
    ElMessage.success("成功登录！")

    // 关闭登录弹窗[对外发送一个登录成功的信息]
    state.username = ""
    state.password = ""
    emit("success", response.data.token)
  })
}

</script>

<style scoped>
.title{
	font-size: 20px;
	color: #9b9b9b;
	letter-spacing: .32px;
	border-bottom: 1px solid #e6e6e6;
  display: flex;
  justify-content: space-around;
  padding: 0px 60px 0 60px;
  margin-bottom: 20px;
  cursor: pointer;
}
.title span.active{
	color: #4a4a4a;
  border-bottom: 2px solid #84cc39;
}

.inp{
	width: 350px;
	margin: 0 auto;
}
.inp .code{
  width: 220px;
  margin-right: 16px;
}
#get_code{
 margin-top: 6px;
}
.inp input{
    outline: 0;
    width: 100%;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
}
.inp input.user{
    margin-bottom: 16px;
}
.inp .rember{
     display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    margin-top: 10px;
}
.inp .rember p:first-of-type{
    font-size: 12px;
    color: #4a4a4a;
    letter-spacing: .19px;
    margin-left: 22px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    /*position: relative;*/
}
.inp .rember p:nth-of-type(2){
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .19px;
    cursor: pointer;
}

.inp .rember input{
    outline: 0;
    width: 30px;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
    vertical-align: middle;
    margin-right: 4px;
}

.inp .rember p span{
    display: inline-block;
  font-size: 12px;
  width: 100px;
}
.login_btn{
    cursor: pointer;
    width: 100%;
    height: 45px;
    background: #84cc39;
    border-radius: 5px;
    font-size: 16px;
    color: #fff;
    letter-spacing: .26px;
    margin-top: 30px;
    border: none;
    outline: none;
}
.inp .go_login{
    text-align: center;
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .26px;
    padding-top: 20px;
}
.inp .go_login span{
    color: #84cc39;
    cursor: pointer;
}
</style>